The dataset used has been obtained with CORSIKA v6.9 [1]} and its IACT/ATMO extensionhttps://www.mpi-hd.mpg.de/hfm/ bernlohr/iact-atmo/ and the sim-telarray v2018-11-07 package [2]}, then processed with DL1 Data Handler v0.7.4https://zenodo.org/record/4575505#.YNNMI1kzaV5 and ctapipe v0.6.2https://cta-observatory.github.io/ctapipe/. It is composed of full simulated events as recorded by a single LST at LaPalma pointing at 20 deg. zenith angle in the South direction, and for air showers from primary protons, electrons, diffuse gamma-rays and pointlike gamma rays.
Diffuse events come from random directions within a view-cone of 10 degrees, while all pointlike gamma rays come from a single specific source in the sky at a 0.4 degree offset from the center of the camera. A set of \(\sim 9 \cdot 10^5\)  diffuse gamma rays and \(\sim 9 \cdot 10^5\)  protons was used to train the network, while a set of \(\sim 6 \cdot 10^5\)  electrons, \(\sim 2.5 \cdot 10^5\)  protons and \(10^6\)  pointlike gamma rays was used to test the performances.
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